Kılavuzda rastgele bir koordinat yolu oluşturun

Question

Neyi İstiyor? (: Yolu ile ızgara kodu)

PHP bir işlevi ya da sınıfı istediğiniz/yöntem şu bkz bir ızgara (9x9) bir oluşturmak yolun bir dizi döner.

• bir yön yolu yoktur birbirinden
• örtüşen blok can not (? Altından bakın: Ben vardı ne yapıyoruz ) Bu durum vardır. Bu yol rasgele olabilir ve talimatlar gereklidir.
• Sağdan/üstten çıkmak ve sol/alt kısımdaki yolun devam etmesi mümkündür (aşağıdaki örneğe bakınız). Tam tersi de mümkündür.
• Adım sayısı değişkendir ve birbiriyle çakışamaz.
• Bir dizi döndürün (kodu: yol izgarası). Aşağıdaki görüntü örneğindeki turuncu noktalardan koordinatlara ihtiyacım var. Aslında bir dizideki koordinatlar (turuncu noktalardan) yeterlidir. Ama tam 9x9 dizi ızgarasını kullanması daha kolaysa, tamam.

Ne yaptım?

• bir dizi boş ızgara (kod: Boş ızgara):
• bu durumda 1.234.123 bir yönde (görüntü örnekte "Başlat" bölümüne bakın)
• bir rastgele başlangıç ​​pozisyonu (olabilmektedir farklı) (1: yukarı, 2: sağ, 3: aşağı, 4: sol)

ekstra bilgiler gerekiyor?

Ek bilgiye ihtiyacınız varsa veya bir şey net değil mi? lütfen bana sorun. Teşekkürler!

kodu: Boş ızgara:

array(
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
) 

kodu: yolu ile ızgara (1 = 8 = bitiş):

array(
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 3, 0, 2, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(6, 0, 0, 7, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
    array(0, 0, 0, 8, 0, 0, 1, 0, 0), 
    array(5, 0, 0, 0, 4, 0, 0, 0, 0), 
    array(0, 0, 0, 0, 0, 0, 0, 0, 0), 
) 

Bu sizin başlamış

Answer 1

(Yerleştirilmiş a demo @http://tinker.bit-nibble-byte.com/grid.php)

Lütfen alternatif sözdizimini affet, nefret ediyorum parantez.

<style> 
    td { 
     width: 30px; 
     height: 30px; 
     font-size: 15px; 
     text-align: center; 
    } 

    td.S { 
     color: black; 
     background-color: orange; 
    } 

    td.D { 
     color: black; 
     background-color: #44c; 
    } 

    td.R { 
     color: black; 
     background-color: #c44; 
    } 

    td.U { 
     color: black; 
     background-color: #cc4; 
    } 

    td.L { 
     color: black; 
     background-color: #4c4; 
    } 

    td.E { 
     color: black; 
     background-color: #c4c; 
    } 
</style> 
<?php 

$data = pathField(50, 25, 50, 10); 

dumpField($data['FIELD']); 
dumpCoor($data['COOR']); 

/** 
* @param int $width Width of the playing field 
* @param int $height Height of the playing field 
* @param null $steps Number of direction changes 
* @param int $legChange Odds of changing direction (1-99) 
* #param null $minLegLength Minimum length of a straight line (or until it hits a wall) 
* @param null $startX Start X Position 
* @param null $startY Start Y Position 
* @return array 
*/ 
function pathField($width = 10, $height = 10, $steps = null, $legChange = 50, $minLegLength = 3, $startX = null, $startY = null) 
{ 
    $coord = array(); // Coordinates where direction was changed 

    if (!$startX): 
     $startX = rand(1, $width); // Random X start position 
    endif; 
    if (!$startY): 
     $startY = rand(1, $height); // Random Y start position 
    endif; 
    if (!$steps): 
     $steps = $width * $height; // Will cause run until "painted in a corner" 
    endif; 

    $coord[] = array('X' => $startX, 'Y' => $startY); // Set First/Start coordinate 

    $field = array_fill(1, $height, array_fill(1, $width, null)); // Create the empty playing field 
    $field[$startY][$startX] = 'S'; // Flag start position 
    $pos = array('X' => $startX, 'Y' => $startY, 'D' => null, 'L' => $minLegLength + 1); // Set current position 

    while (count($coord) < $steps): // Go until we have enough steps 

     $go = array (            // Calculate the directions positions for 
     'left' => (($pos['X'] - 1) < 1) ? $width : ($pos['X'] - 1), // Left 
     'right' => (($pos['X'] + 1) > $width) ? 1 : ($pos['X'] + 1), // Right 
      'up' => (($pos['Y'] - 1) < 1) ? $height : ($pos['Y'] - 1), // Up 
     'down' => (($pos['Y'] + 1) > $height) ? 1 : ($pos['Y'] + 1), // Down 
     ); 

     $validMoves = array(); // Reset valid moves 

     if ($field[$pos['Y']][$go['left']] == null): // Check if we can move left 
      $validMoves['L'] = array(
       'X' => $go['left'], 
       'Y' => $pos['Y'], 
       'D' => 'L', 
       'P' => rand(1,$width) 
      ); 
     endif; 
     if ($field[$pos['Y']][$go['right']] == null): // Check if we can move right 
      $validMoves['R'] = array(
       'X' => $go['right'], 
       'Y' => $pos['Y'], 
       'D' => 'R', 
       'P' => rand(1,$width) 
      ); 
     endif; 
     if ($field[$go['up']][$pos['X']] == null): // Check if we can move up 
      $validMoves['U'] = array(
       'X' => $pos['X'], 
       'Y' => $go['up'], 
       'D' => 'U', 
       'P' => rand(1,$height) 
      ); 
     endif; 
     if ($field[$go['down']][$pos['X']] == null): // Check if we can move down 
      $validMoves['D'] = array(
       'X' => $pos['X'], 
       'Y' => $go['down'], 
       'D' => 'D', 
       'P' => rand(1,$height) 
      ); 
     endif; 

     if (count($validMoves) == 0): // If there are no valid moves, it means... 
      break;      // Painted myself into a corner! 
     endif; 

     // Keep going in the same direction or are we changing? 


     if (array_key_exists($pos['D'], $validMoves) && (($pos['L'] < $minLegLength) || (rand(1, 100) < $legChange))): 
      $moveDir = $validMoves[$pos['D']]; // Get Last Direction 
      $pos['L']++; // Increase Leg Length 
     else: 
      $moveDir = $validMoves[array_rand($validMoves, 1)]; // Get A Random Direction 
     endif; 

     // If we're changing directions record the point in the coordinate array 
     if ($moveDir['D'] != $pos['D']): 
      $coord[] = array(
       'X' => $moveDir['X'], 
       'Y' => $moveDir['Y'] 
      ); 
      $pos['L'] = 1; // Reset leg Length 
     endif; 

     // Update our current position 
     $pos = array('X' => $moveDir['X'], 'Y' => $moveDir['Y'], 'D' => $moveDir['D'], 'L' => $pos['L']); 

     // Update the playing field 
     $field[$pos['Y']][$pos['X']] = $moveDir['D']; 
    endwhile; 

    $field[$pos['Y']][$pos['X']] = 'E'; // Flag the end point 

    return array('FIELD' => $field, 'COOR' => $coord); // Return the fields and the coors 
} 

function dumpCoor(array $coor) 
{ 
    foreach($coor as $point): 
     echo $point['X'] . ', ' . $point['Y'] . '<br>'; 
    endforeach; 
} 

function dumpField(array $field) 
{ 
    $height = count($field); 
    $width = count($field[1]); 
    echo $width . 'x' . $height; 
    echo "<table border='1'>"; 
    foreach ($field as $key => $row): 
     echo "<tr>"; 
     foreach ($row as $key => $cell): 
      if ($cell): 
       echo "<td class=\"$cell\">$cell</td>"; 
      else: 
       echo "<td>&nbsp;</td>"; 
      endif; 
     endforeach; 
     echo "</tr>"; 
    endforeach; 
    echo "</table>"; 

} 

Answer 2

@Wranorn Cevabınız için teşekkür ederiz! Ben test ederim ve işe yarıyor. Bu arada bir ızgara oluşturan bir senaryo da yaptım. Umarım bu komut dosyalarından biri aynı soruya sahip diğer insanlara yardımcı olur. İşte benim snippet'ım:

<?php 
class Grid{ 
    //propertys to create grid path 
    private $aDirections = array(1,2,3,4,1,2,3); // 1: up, 2: right, 3: down, 4: left 
    private $aGridTemp = array(); 
    private $aGridDefinitive = array(); 
    private $iLastX = null; 
    private $iLastY = null; 
    private $iStep = 0; 
    private $aAllSteps = array(); 
    private $sUniqueKey = ""; //create empty Unique Key (length of each block range)  

    /* 
    * Return a grid array 
    * @return $this->_generateGridPath 
    */ 
    public function getGridPath(){ 
     //cal method thats generate a Path for the grid 
     return $this->_generateGridPath(); 
    } 

    /* 
    * (GENERATE GRID) 
    * Create a grid path 
    */ 
    private function _generateGridPath() { 
     //(Re)Set grid data 
     $this->iStep = 0; 
     $this->iLastX = rand(1, 7); 
     $this->iLastY = rand(1, 7); 
     $this->sUniqueKey = ""; 
     $this->aAllSteps = array(); 
     //set first step to steparray 
     $this->aAllSteps[] = array('iCellX' => $this->iLastX, 'iCellY' => $this->iLastY); 

     //create empty grid and save it to temp grid 
     $this->aGridDefinitive = $this->_getEmptyGridArray(); 
     $this->aGridTemp = $this->aGridDefinitive; 

     //set start position 
     $this->aGridTemp[$this->iLastY][$this->iLastX] = 0; 

     //loop trhough all direction steps 
     foreach ($this->aDirections AS $iDirection) { 
      $iNumberOfBlocks = rand(2, 8); 

      //check the new coordinate is posible (check if there no overlapping) 
      do { 
       //check the new coordinate is posible (check if there no overlapping) 
       $coordinateCheck = $this->_checkNewCoordinatesIsPossible($iDirection, $iNumberOfBlocks); 
       if ($coordinateCheck) { 
        //if success add to unique key 
        $this->sUniqueKey .= $iNumberOfBlocks; 
        //set temp to to definitive grid 
        $this->aGridDefinitive = $this->aGridTemp; 
        $this->iStep++; 
        $this->iLastX = $coordinateCheck['iCellX']; 
        $this->iLastY = $coordinateCheck['iCellY']; 
        //add to all steps array 
        $this->aAllSteps[] = array('iCellX' => $coordinateCheck['iCellX'], 'iCellY' => $coordinateCheck['iCellY']); 
        break; 
       } else { 
        //break out each if check is false 
        $this->aGridTemp = $this->aGridDefinitive; 
        $iNumberOfBlocks--; 
       } 
      } while ($iNumberOfBlocks > 2); 
     } 

     //if unique key is not complete (not the same length as the number of directions) rebuild grid 
     if (strlen($this->sUniqueKey) != count($this->aDirections)) { 
      $this->_generateGridPath(); 
     } 

     //return the grid path data 
     return $this->aGridDefinitive; 
    } 

    /* 
    * (GENERATE GRID) 
    * Check if Coordinate is possible 
    * $iDirection, $iNumberOfBlocks 
    */ 
    private function _checkNewCoordinatesIsPossible($iDirection, $iNumberOfBlocksNew){ 
     //set check boolean 
     $return = true; 
     //if first step than step - 1 
     $iNumberOfBlocks = $this->iStep == 0 ? ($iNumberOfBlocksNew-1) : $iNumberOfBlocksNew; 
     //set new block position 
     $iCurrentY = ""; 
     $iCurrentX = ""; 
     //check the direction to fill the blocks the right way 
     switch ($iDirection) { 
      case 1: //direction up (go positif (higher) coordinate) 
       $iCurrentX = $this->iLastX; 
       $iCurrentY = $this->_getCoordinatePosition($this->iLastY, $iNumberOfBlocks, false); 
       break; 
      case 3: //direction down (go negative (lower) coordinate) 
       $iCurrentX = $this->iLastX; 
       $iCurrentY = $this->_getCoordinatePosition($this->iLastY, $iNumberOfBlocks, true); 
       break; 
      case 2: //direction right (go positif (higher) coordinate) 
       $iCurrentY = $this->iLastY; 
       $iCurrentX = $this->_getCoordinatePosition($this->iLastX, $iNumberOfBlocks, true); 
       break; 
      case 4: //direction left (go negative (lower) coordinate) 
       $iCurrentY = $this->iLastY; 
       $iCurrentX = $this->_getCoordinatePosition($this->iLastX, $iNumberOfBlocks, false); 
       break; 
     } 

     //check the direction to fill the blocks the right way 
     switch ($iDirection) { 
      case 1: //direction up 
       //check if the current block is positioning under or above the last block 
       if($iCurrentY < $this->iLastY){ 
        //Loop from last position Y to current postiont Y // ($this->iLastY-1 do not overwrite the last item) 
        for($iPosY = ($this->iLastY-1); $iPosY > ($iCurrentY-1); $iPosY--) { 
         //check if not null 
         if($this->aGridTemp[$iPosY][$iCurrentX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iPosY][$iCurrentX] = $this->iStep; 
        } 
       }else{ 
        //Loop from last position Y to top row (pos y: 1) // ($this->iLastY-1 do not overwrite the last item) 
        for($iPosY = ($this->iLastY-1); $iPosY >= 0; $iPosY--) { 
         //check if not null 
         if($this->aGridTemp[$iPosY][$iCurrentX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iPosY][$iCurrentX] = $this->iStep; 
        } 
        //loop from bottom to current pos Y 
        for($iPosY = 8; $iPosY > ($iCurrentY-1); $iPosY--) { 
         //check if not null 
         if($this->aGridTemp[$iPosY][$iCurrentX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iPosY][$iCurrentX] = $this->iStep; 
        } 
       } 
       break; 
      case 3: //direction down 
       //check if the current block is positioning under or above the last block 
       if($iCurrentY > $this->iLastY){ 
        //Loop from last position Y to current postiont Y // ($this->iLastY+1 do not overwrite the last item) 
        for($iPosY = ($this->iLastY+1); $iPosY <= $iCurrentY; $iPosY++) { 
         //check if not null 
         if($this->aGridTemp[$iPosY][$iCurrentX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iPosY][$iCurrentX] = $this->iStep; 
        } 
       }else{ 
        //Loop from top to current item row // ($iCurrentY-1 do not current the current item) 
        for($iPosY = 0; $iPosY <= $iCurrentY; $iPosY++) { 
         //check if not null 
         if($this->aGridTemp[$iPosY][$iCurrentX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iPosY][$iCurrentX] = $this->iStep; 
        } 
        //loop from bottom to last to bottom pos Y // ($this->iLastY+1 do not overwrite the last item) 
        for($iPosY = ($this->iLastY+1); $iPosY <= 8; $iPosY++) { 
         //check if not null 
         if($this->aGridTemp[$iPosY][$iCurrentX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iPosY][$iCurrentX] = $this->iStep; 
        } 
       } 
       break; 
      case 2: //direction right 
       //check if the current block is positioning left or right from the last block 
       if($iCurrentX > $this->iLastX){ 
        //Loop from last position X to current postiont X // ($this->iLastX+1 do not overwrite the last item) 
        for($iPosX = ($this->iLastX+1); $iPosX < ($iCurrentX+1); $iPosX++) { 
         //check if not null 
         if($this->aGridTemp[$iCurrentY][$iPosX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iCurrentY][$iPosX] = $this->iStep; 
        } 
       }else{ 
        //Loop from left to current item to right // ($iCurrentX-1 do not current the current item) 
        for($iPosX = 0; $iPosX <= $iCurrentX; $iPosX++) { 
         //check if not null 
         if($this->aGridTemp[$iCurrentY][$iPosX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iCurrentY][$iPosX] = $this->iStep; 
        } 
        //loop from left to last to right pos X // ($this->iLastX+1 do not overwrite the last item) 
        for($iPosX = ($this->iLastX+1); $iPosX <= 8; $iPosX++) { 
         //check if not null 
         if($this->aGridTemp[$iCurrentY][$iPosX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iCurrentY][$iPosX] = $this->iStep; 
        } 
       } 
       break; 
      case 4: //direction left 
       //check if the current block is positioning under left or right from the last block 
       if($iCurrentX < $this->iLastX){ 
        //Loop from last position X to current postiont X // ($this->iLastX-1 do not overwrite the last item) 
        for($iPosX = ($this->iLastX-1); $iPosX > ($iCurrentX-1); $iPosX--) { 
         //check if not null 
         if($this->aGridTemp[$iCurrentY][$iPosX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iCurrentY][$iPosX] = $this->iStep; 
        } 
       }else{ 
        //Loop from last position X to left row (pos x: 1) // ($this->iLastX-1 do not overwrite the last item) 
        for($iPosX = ($this->iLastX-1); $iPosX >= 0; $iPosX--) { 
         //check if not null 
         if($this->aGridTemp[$iCurrentY][$iPosX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iCurrentY][$iPosX] = $this->iStep; 
        } 
        //loop from left to current pos X 
        for($iPosX = 8; $iPosX > ($iCurrentX-1); $iPosX--) { 
         //check if not null 
         if($this->aGridTemp[$iCurrentY][$iPosX] !== null){ 
          $return = false; 
         } 
         $this->aGridTemp[$iCurrentY][$iPosX] = $this->iStep; 
        } 
       } 
       break; 
     } 

     //if there ar no errros (if return is true)? return the X and Y position 
     if($return === true){  
      $return = array('iCellX' => $iCurrentX, 'iCellY' => $iCurrentY); 
     } 

     //return data (false or position) 
     return $return; 
    } 

    /* 
    * (GENERATE GRID) 
    * Reset grid array 
    * @return an empty grid array 
    */ 
    private function _getEmptyGridArray(){ 
     return array(
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
      array(null, null, null, null, null, null, null, null, null), 
     ); 
    } 

    /* 
    * (GENERATE GRID) 
    * If heigher than 8? continue 0. If lower than 0? continue 8 
    * $iCurrentPosition, $iBlockLength, $bIsPositive 
    */ 
    private function _getCoordinatePosition($iCurrentPosition, $iBlockLength, $bIsPositive = true){ 
     $iNewCoordinate = $iCurrentPosition; 
     //check if its a positive or negative integer 
     if($bIsPositive){ 
      //loop the number of block 
      for ($i = 1; $i <= $iBlockLength; $i++) { 
       $iNewCoordinate++; 
       //if higher than 8 go back to 0 
       if($iNewCoordinate > 8){ 
        $iNewCoordinate = 0; 
       } 
      } 
     }else{ 
      //loop the number of block 
      for ($i = 1; $i <= $iBlockLength; $i++) { 
       $iNewCoordinate--; 
       //if higher than 8 go back to 0 
       if($iNewCoordinate < 0){ 
        $iNewCoordinate = 8; 
       } 
      } 
     } 
     return $iNewCoordinate; 
    } 
} 


$oGrid = new Grid; 
$aGrid = $oGrid->getGridPath(); 

?> 
<table> 
<?php foreach ($aGrid AS $row): ?> 
    <tr> 
    <?php foreach ($row AS $col): ?> 
     <td style="border: 1px solid red;"><?php echo $col; ?> &nbsp; </td> 
    <?php endforeach; ?> 
    </tr> 
<?php endforeach; ?>  
</table>